EP1200157A1 - Appareil d'alarme pour un appareil respiratoire a air comprime - Google Patents

Appareil d'alarme pour un appareil respiratoire a air comprime

Info

Publication number
EP1200157A1
EP1200157A1 EP00960323A EP00960323A EP1200157A1 EP 1200157 A1 EP1200157 A1 EP 1200157A1 EP 00960323 A EP00960323 A EP 00960323A EP 00960323 A EP00960323 A EP 00960323A EP 1200157 A1 EP1200157 A1 EP 1200157A1
Authority
EP
European Patent Office
Prior art keywords
pressure
warning device
microprocessor
time
compressed air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00960323A
Other languages
German (de)
English (en)
Inventor
Dieter Lubkoll
Peter Kling
Thomas HÄNISCH
Torsten Haase
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MSA Auer GmbH
Original Assignee
MSA Auer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MSA Auer GmbH filed Critical MSA Auer GmbH
Publication of EP1200157A1 publication Critical patent/EP1200157A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
    • G08B21/0438—Sensor means for detecting
    • G08B21/0453—Sensor means for detecting worn on the body to detect health condition by physiological monitoring, e.g. electrocardiogram, temperature, breathing
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/006—Indicators or warning devices, e.g. of low pressure, contamination
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/02—Divers' equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/02—Divers' equipment
    • B63C2011/021—Diving computers, i.e. portable computers specially adapted for divers, e.g. wrist worn, watertight electronic devices for detecting or calculating scuba diving parameters

Definitions

  • the invention relates to a warning device for a compressed air breathing apparatus, which comprises a motion sensor and a sounder triggered by a microprocessor when the user is immobile, wherein a pressure gauge can be connected to a pressurized breathing air container of the compressed air breathing apparatus via a pressure line.
  • Warning devices of this type are usually switched on manually by the device wearer before use. If the motion detector registers that the device carrier is immobile, a pre-alarm is triggered for the user himself and a main alarm to call for help from third parties is delayed. Convenience, forgetfulness or sometimes the annoying noises in the case of a frequently occurring pre-alarm mean that the warning device is sometimes not switched on and thus the safety, but also the ability to work, of the person concerned is not guaranteed. To solve this problem, the warning devices are known to be designed with a Hall-effect switch that can be switched using a key. The removed and centrally managed key is intended to make it easier for third parties to control the activation of the warning device. This system is complex and there is no complete security with regard to the actual switching on of the warning device.
  • the calculation and indication of the remaining time of use is also carried out SCBA or device carrier based on the volume of the breathing air container, so that different or differently programmed warning devices must be used for SCBAs with different capacities.
  • the known warning devices are also designed for special warning thresholds, some of which do not meet the existing requirements.
  • the invention is therefore based on the object of specifying a warning device of the type mentioned at the outset, the data for the alarming can be changed in accordance with the respective requirements and which is switched on with certainty in the operating state of the compressed air breathing apparatus and m in relation to the determination of the remaining operating time regardless of the volume of the respiratory air tank can be used variably and retrofitted as desired.
  • the object is achieved with a warning device for a breathing apparatus designed according to the features of claim 1.
  • An essential feature of the invention consists first of all in that - starting from the mechanical pressure gauges usually used and the electronic warning units equipped with a sound generator for signaling immobility of the user - the monitor and the electronic system are combined in one unit, namely via A pressure sensor integrated in the compressed air supply in the manometer, whose electrical signals processed in a signal processing part are supplied to a microprocessor in order to activate the electronic system and in particular the motion sensor and the corresponding sound generator.
  • the warning device is therefore independent of the user m operation as soon as the SCBA is used. An accidental marriage or deliberate non-commissioning of the warning device is therefore definitely excluded.
  • the pressure sensor also acts as a second pressure measuring device that is independent of the pressure gauge.
  • the prevailing pressure is shown digitally on a display.
  • the pressure sensor is also used in conjunction with the microprocessor and the data entered in it to activate the sound generator when it falls below certain - graded - pressure values in the breathing air tank. By triggering the acoustic signals - for example when 150 bar, 100 bar and 60 bar are reached - the user is warned in good time and several times.
  • Another function of the pressure sensor in connection with the microprocessor and a clock integrated into the device is, based on the prevailing pressure in the breathing air container and the repeated measurement of the pressure drop per unit of time, i.e. the current air consumption by the user, the maximum remaining Calculate the usage time of the device carrier and show it on the display in short intervals.
  • This type of residual usage time calculation on the basis of the values transmitted by the pressure sensor enables the warning device according to the invention to be used for all container sizes customary in compressed air breathing apparatus.
  • An important feature of the invention of the electronic part of the warning device is furthermore the integration of an infrared interface connected to the microprocessor for data input into the microprocessor, in order in this way to set the required alarm thresholds for pressure and temperature or to activate a Hall effect. Set switch for optional activation of the electronic system via a key.
  • the infrared interface designed as an IR transceiver is coupled to a telemetry, so that the data can also be input from a central point of use or the stored data can be read from there.
  • the solution according to the invention thus provides a warning device which is variable in its warning thresholds and which meets the highest requirements with regard to the safety of the user and can be used for all sizes of compressed air breathing apparatus and can also be easily retrofitted, since the conventional pressure gauge only works against that the alarm device according to the state of the art is replaced.
  • the warning device consists of a robust housing 2 with function keys 1, which has a mechanical Bourdon tube pressure gauge 3 for analog pressure display and an electronic measuring and warning unit.
  • the electronic unit comprises a pressure sensor 4 formed, for example, from a membrane provided with strain gauges, which, like the manometer 3, is acted upon directly by the compressed air in a breathing air container (not shown).
  • the compressed air sensor 4 is over a signal processing part 5 connected to a microprocessor 6 and a display 7. In this way, the pressure in the breathing air container is measured both mechanically and electronically and displayed on the one hand in analogue form and on the other hand digitally. Even if one measuring unit fails, the measured value of the other unit is still available as a warning signal.
  • an LED status display 11 and a sound generator 12 are connected to the microprocessor 6. All the electricity consumers of the electronic system are supplied with the necessary energy by a battery 13.
  • the real-time clock 10 also has an auxiliary battery 10a in order not to impair the function of the clock when the power supply is interrupted, for example when the battery is changed.
  • Temperature sensor detected temperature or when the motion sensor 9 triggers an alarm on the sounder 12 via the microprocessor.
  • the pressure on the display 7 occurs at the start of the start of the compressed air breathing apparatus or the warning device.
  • the respective maximum remaining operating time is also shown on the display 7. This time remaining for the user until the air in the breathing air container is completely used up is calculated on the basis of the respective - actual - pressure in the breathing air container and the air breathed in by the user in a specific time unit, which is measured with the real-time clock.
  • the current air consumption per unit of time (current respiration) is measured again every 30 seconds in order to indicate the remaining operating time for the wearer.
  • This type of residual time calculation based on the pressure and the pressure drop per unit of time enables the use of the warning device regardless of the size of the respiratory air container, so that any SCBA can be retrofitted with the warning device.
  • the microprocessor 6 connected to the motion sensor 9 and the real-time clock 10 is programmed in such a way that when the device carrier is immobile, that is to say when the motion sensor responds, a pre-alarm is first triggered and a main alarm is triggered at a certain time interval on the sounder 12.
  • the microprocessor 6 can also emit an acoustic alarm at the sound pressure 12 at a certain pressure of, for example, 60 bar or at several different pressures, for example at 60 bar, 100 bar and 150 bar.
  • the temperature value for triggering the temperature alarm can be set via the microprocessor or
  • Pre-alarm can be deleted when the motion sensor 9 responds.
  • This stored data is integrated in the warning device with an IR transceiver 14 (infrared interface), via which the respectively desired data can be read into the microprocessor 6. Likewise, the current data of the warning device can be read out via the IR transceiver 14.
  • the warning device additionally has a Hall effect switch 15 with a key, the removal of which means that the warning device can also be put into operation via the microprocessor 6.
  • the Hall effect switch 15 is activated via the IR transceiver 14, in which case the function of the pressure sensor 4 for starting the warning device 5 no longer exists, but the pressure meter has its function for determining the pressure and determining the pressure drop per unit of time m Connection with the time measurement for triggering certain pressure alarms or for calculating the remaining operating time continues to be maintained.
  • the reference numeral 16 also indicates a telemetry connected to the infrared interface, via which the data of the warning device can be recorded by radio from an external control center or, in this way, also certain data in the
  • the Device can be read. Via the interface in the warning device, it is thus possible to control the use of the device carriers and to initiate necessary measures, for example triggering the main alarm as a request to leave the area of use.
  • the warning device described above merely represents an exemplary embodiment of the invention, which does not restrict the subject of the application.
  • Electrical signals supplied to the microprocessor for starting up the warning device, for calculating the reset time and for triggering an alarm as a function of certain pressure and temperature specifications that can be read in via an IR transceiver and time specifications as warning thresholds of the present invention are numerous modifications in possible with regard to the special design of the warning device and its individual components.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Cardiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Physiology (AREA)
  • Gerontology & Geriatric Medicine (AREA)
  • Biophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

Appareil d'alarme pour un appareil respiratoire à air comprimé, qui comporte un manomètre mécanique (3) et un capteur (4) de pression placé dans la conduite d'air comprimé, ledit capteur étant connecté à un microprocesseur (6) par l'intermédiaire d'une partie de traitement (5) de signaux. Le microprocesseur est connecté à un indicateur de mouvements (9), à un capteur de température (8) et à une horloge en temps réel (10) et se trouve d'autre part relié à une source sonore (12) et à un afficheur (7). Le capteur de pression sert à mettre en fonction le système électronique de l'appareil indépendamment de l'utilisateur et à déclencher une alarme lorsqu'une pression minimale déterminée est atteinte, et plus particulièrement à calculer et à indiquer le temps d'utilisation restant, indépendamment du volume du récipient concerné, en liaison avec l'horloge en temps réel et le microprocesseur à partir de la pression effective régnant dans le récipient à air comprimé et de la chute effective de pression par unité de temps. Le microprocesseur est connecté à une interface (14) à infrarouge par l'intermédiaire de laquelle des données permettant le réglage ou la modification de seuils d'alarme peuvent être entrées et des données concernant l'appareil peuvent être lues.
EP00960323A 1999-07-29 2000-07-18 Appareil d'alarme pour un appareil respiratoire a air comprime Withdrawn EP1200157A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1999136893 DE19936893C2 (de) 1999-07-29 1999-07-29 Warngerät für einen Pressluftatmer
DE19936893 1999-07-29
PCT/DE2000/002432 WO2001008752A1 (fr) 1999-07-29 2000-07-18 Appareil d'alarme pour un appareil respiratoire a air comprime

Publications (1)

Publication Number Publication Date
EP1200157A1 true EP1200157A1 (fr) 2002-05-02

Family

ID=7917274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00960323A Withdrawn EP1200157A1 (fr) 1999-07-29 2000-07-18 Appareil d'alarme pour un appareil respiratoire a air comprime

Country Status (6)

Country Link
EP (1) EP1200157A1 (fr)
AU (1) AU7268200A (fr)
CA (1) CA2379697A1 (fr)
DE (1) DE19936893C2 (fr)
WO (1) WO2001008752A1 (fr)
ZA (1) ZA200200492B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10314135B3 (de) * 2003-03-24 2004-09-30 Msa Auer Gmbh Warnsystem für unter gefährlichen Bedingungen tätige Personen
HRP20030827A2 (en) * 2003-10-13 2005-04-30 Krstini� Damir Breath-hold diving life-jacket
CN103007456A (zh) * 2012-12-28 2013-04-03 北京安氧特科技有限公司 一种用于化学制氧呼吸器的计时报警装置
DE102014104131A1 (de) 2014-03-25 2015-10-01 Msa Europe Gmbh Überwachungsvorrichtung und Überwachungssystem
BR112017013076A2 (pt) * 2014-12-22 2018-01-02 Koninklijke Philips N.V. kit de primeiros socorros, e, dispositivo para ser usado junto ao corpo
CN105608839B (zh) * 2016-03-11 2017-09-22 南通职业大学 一种老人室内摔倒求救系统
EP4182054A1 (fr) 2020-07-16 2023-05-24 Invacare Corporation Système et procédé de concentration de gaz
EP4181993A4 (fr) 2020-07-16 2024-08-07 Ventec Life Systems Inc Système et procédé de concentration du gaz
US20220146354A1 (en) * 2020-11-09 2022-05-12 Nara Gasparian Scott Monitoring System For A Radon Mitigation System

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5157378A (en) * 1991-08-06 1992-10-20 North-South Corporation Integrated firefighter safety monitoring and alarm system
US5640148A (en) * 1996-01-26 1997-06-17 International Safety Instruments, Inc. Dual activation alarm system
US5757273A (en) * 1996-02-23 1998-05-26 Detex Corporation Multifunctional personal alert safety system
US5832916A (en) * 1996-02-20 1998-11-10 Interspiro Ab Method and system for checking the operability of electrical-based components in a breathing equipment
EP0801368B1 (fr) * 1996-04-13 2003-02-12 Draeger Limited Dispositif de surveillance

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0108752A1 *

Also Published As

Publication number Publication date
CA2379697A1 (fr) 2001-02-08
DE19936893A1 (de) 2001-02-22
ZA200200492B (en) 2002-07-15
DE19936893C2 (de) 2002-08-01
WO2001008752A1 (fr) 2001-02-08
AU7268200A (en) 2001-02-19

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